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<?php
declare(strict_types=1);
namespace OpenTelemetry\SDK\Metrics;
use OpenTelemetry\Context\ContextInterface;
use OpenTelemetry\SDK\Common\Attribute\AttributesInterface;
use OpenTelemetry\SDK\Metrics\Data\DataInterface;
use OpenTelemetry\SDK\Metrics\Data\Exemplar;
use OpenTelemetry\SDK\Metrics\Data\Temporality;
/**
* @psalm-template T
*/
interface AggregationInterface
{
/**
* @psalm-return T
*/
public function initialize();
/**
* @psalm-param T $summary
* @psalm-param float|int $value
*/
public function record($summary, $value, AttributesInterface $attributes, ContextInterface $context, int $timestamp): void;
/**
* @psalm-param T $left
* @psalm-param T $right
* @psalm-return T
*/
public function merge($left, $right);
/**
* @psalm-param T $left
* @psalm-param T $right
* @psalm-return T
*/
public function diff($left, $right);
/**
* @param array<AttributesInterface> $attributes
* @psalm-param array<T> $summaries
* @param array<list<Exemplar>> $exemplars
* @param string|Temporality $temporality
*/
public function toData(
array $attributes,
array $summaries,
array $exemplars,
int $startTimestamp,
int $timestamp,
$temporality
): DataInterface;
}
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